Abstract
Diamine monomers which have quinoline unit, 6-amino-2-(p-amino phenyl) -4-phenyl quinoline and 6-amino-2-[4- (p-amino phenoxy) phenyl]-4-phenyl quinoline, were synthesized by the acid-catalyzed Friedlander quinoline synthesis method and identified by IR spectra,R-NMR spectra and elemental analysis. Aromatic polyamides were synthesized by low-temperature solution polymerization using above monomers with terephthaloyl chloride for homopoly-merization, using above monomers and p-phenylene diamine with terephthaloyl chloride for copolymerization. The existing aromatic polyamide, PPTA, was also polymerised in the same method for comparison. For all the synthesized polymers, some characterization such as solubility test for various organic solvents, thermogravimertric analyses were carried out. And liquid crystalline textures of polymers were examined through polarized microscope. As the results of those tests, most polymers were soluble in some organic solvents containing metal salts and their initial decomposition temperatures were found to be near 500˚C. Tensile test of fibers obtained from polymerization dope by direct spinning were carried out.